Maze Runner: The Death Cure (also known simply as The Death Cure) is a 2018 American dystopian science fiction action film directed by Wes Ball and written by T.S. Nowlin, based on the novel The Death Cure written by James Dashner. It is the sequel to the 2015 film Maze Runner: The Scorch Trials and the third and final installment in the Maze Runner film series. The film stars Dylan O'Brien, Kaya Scodelario, Thomas Brodie-Sangster, Dexter Darden, Nathalie Emmanuel, Giancarlo Esposito, Aidan Gillen, Walton Goggins, Ki Hong Lee, Jacob Lofland, Katherine McNamara, Barry Pepper, Will Poulter, Rosa Salazar, and Patricia Clarkson.
Maze Runner: The Death Cure was originally set to be released on February 17, 2017, in the United States by 20th Century Fox, but the studio rescheduled the film for January 26, 2018 in theatres and IMAX, allowing time for Dylan O'Brien to recover from injuries he sustained during filming. The film received mixed reviews from critics and has grossed over $229 million worldwide.
Thomas, Newt, and Frypan are the last of the free "Gladers" immune to the Flare virus that has ravaged the world's population. Against the orders of Vince, who now leads The Right Arm resistance, the three leave their camp to rescue their immune friend Minho, who is being tortured by the organization WCKD in hopes of developing a cure for the virus. Heading for the "Last City", where WCKD's headquarters is located, the group is attacked by Cranks, humans infected with the Flare. However, they are saved by Jorge and Brenda, who join them.
The group makes it to the wall of the Last City, which protects the city from Cranks. Outside the wall, people are rallying in protest to be let into the city. When WCKD opens fire at the protesters, the group is captured by a contingent of masked men and are taken to a hideout. One of the masked men is revealed to be Gally, who has survived Minho's attack at the end of The Maze Runner. Gally takes them to see Lawrence, a rebellion leader for those outside the walls, who grants them permission to enter the Last City through a secret entrance. Gally leads Thomas and Newt through to the city and, spotting Teresa, Gally tells Thomas that she can get them into WCKD headquarters. The three capture her and she agrees to help them.
Thomas, Newt, and Gally escort Teresa inside WCKD headquarters and toward the location of the Immunes. Gally looks after the Immune children and stays to find a serum that can treat the Flare, while Thomas, Newt, and Teresa go to find Minho. They are caught and chased by a vengeful Janson, who leads WCKD's troops. Teresa lets them escape to find Minho, before rushing to do a blood test on Thomas' blood, which she obtained when removing trackers from the Gladers.
Gally gets the serum and takes the Immune children outside to a bus where Brenda is waiting. While Gally makes his way back into WCKD headquarters to find Thomas, Brenda is forced to leave with the Immune children in a bus as WCKD forces close in on them. Thomas and Newt reunite with Minho in the medical wing. They are chased by Janson before escaping. Teresa discovers that Thomas' blood can cure the Flare. She shares her discovery with WCKD's leader Ava Paige, both agreeing that they must find Thomas. Brenda and the Immune children are cornered by WCKD authorities but are saved by Frypan. Meanwhile, Lawrence rallies his rebels outside the city before blowing a hole in the city wall, allowing his allies and the infected people to storm the city. Outside the headquarters, Gally finds Thomas, Minho, and Newt. Sending Minho and Gally ahead, Newt gives Thomas a necklace with a silver cylinder pendant before passing out. Teresa transmits her voice throughout the city, telling Thomas that his blood can save Newt if he will only return to WCKD. Newt, nearly completely subsumed by the Flare, regains consciousness and attacks Thomas, while begging Thomas to kill him. Left with no other option, Thomas kills Newt.
Thomas makes his way back to WCKD and confronts Ava, who stresses that WCKD's intentions are good. However, she is killed by Janson, who is turning into a Crank. Janson knocks Thomas out and drags him to a lab where Teresa is ready to extract his blood. However, he reveals that he and WCKD are only truly interested in curing those whom they please, which results in Teresa turning on him. After a fight, Janson is killed, allowing Thomas and Teresa to escape to the rooftop where an aircraft piloted by Jorge and Vince is waiting. Thomas makes it aboard, but Teresa is killed when the headquarters comes apart after being hit by a building collapsing owing to the rebels' attacks.
The group reunites with the rest of the Immunes and The Right Arm, escaping to a safe haven that was revealed by Ava, where the remaining population can live in safety. There, Thomas discovers that the pendant Newt gave to him had a note in it. Still traumatized by Teresa's death, he reads the note, in which Newt tells him to look after himself and everyone, before thanking Thomas for being his friend.